Dartmouth College

Recent Dartmouth research underscores the significant influence of Arctic permafrost on the formation of northernmost rivers and highlights the risks of substantial carbon release due to climate change-induced thawing. By analyzing thousands of watersheds, the study reveals the unique characteristics of Arctic river valleys and stresses the importance of understanding these landscapes in the face of global warming. Credit: SciTechDaily.comAs the Arctic warms, the growth of rivers could release carbon emissions equivalent…

Recent winters have displayed conflicting signs of climate change, with both drastic snow shortages and severe blizzards. A Dartmouth study clarifies this by showing a significant decline in Northern Hemisphere snowpacks over the past 40 years due to human-driven climate change. This loss endangers water supplies and winter-reliant economies. The study’s findings, based on an analysis of temperature and precipitation data, indicate that many regions are approaching a “snow-loss cliff,” necessitating immediate adaptation…

A new study found that one in seven people in the US had long Covid by the end of 2022, with symptoms including anxiety, low mood, and cognitive and mobility challenges. The study, which analyzed responses from over 460,000 people, highlighted the need for further research on long Covid’s impact, particularly regarding the role of vaccinations and the mechanisms behind its symptoms.By the end of 2022, approximately one out of every seven individuals in the United States had experienced long Covid, suggests a large-scale…

Dartmouth scientists used an innovative computer model to suggest that volcanic activity, rather than an asteroid impact, was the primary cause of the mass extinction that ended the age of the dinosaurs. This groundbreaking approach opens new avenues for investigating other geological events.Free-thinking computers reverse-engineered the fossil record to identify the causes of a cataclysm.To address the long-standing debate about whether a massive asteroid impact or volcanic activity caused the extinction of dinosaurs and…